BUN Test Explained

What blood urea nitrogen (BUN) measures and what a high value means.

Medically Reviewed By

Artemis Kidney Hospital Nephrology & Transplant Team

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Blood urea nitrogen (BUN) measures urea, a waste product the kidneys clear. A high BUN can reflect reduced kidney function, but also dehydration or high protein intake. Read BUN together with creatinine and eGFR.

Medical Disclaimer

This article is for general education only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified nephrologist about your own condition.

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The Complete Kidney Transplant & Care Guide for India →

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